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Amore S, Lagorio MG, Dicelio LE, Román ES. Photophysical Properties of Supported Dyes. Quantum Yield Calculations in Scattering Media. PROGRESS IN REACTION KINETICS AND MECHANISM 2019. [DOI: 10.3184/007967401103165235] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aluminum tricarboximonoamidephthalocyanine and Rose Bengal were immobilized by adsorption and covalent linkage to different solid supports: silica, silanized silica, silanized silica modified with polylysine chains and NovaSyn® TG amino resin (low cross-linked polystyrene with polyethyleneglycol chains). Specially designed tools were used to evaluate absolute quantum yields in scattering media. A previously developed model was used to calculate fluorescence quantum yields in the solid state and a method is presented for the evaluation of singlet molecular oxygen quantum yields in suspensions. The method yields reliable results for dilute suspensions of particles with diameters much greater than the irradiation wavelength. Diffuse reflectance and, in the case of suspensions, total transmittance spectra are the basic inputs required. In this way the efficiencies of suspended solid photosensitizers were obtained for all samples and correlated with the dye concentration and the way of linking to the surface.
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Affiliation(s)
- Sandra Amore
- Inquimae (UBA-CONICET) / Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
| | - M. Gabriela Lagorio
- Inquimae (UBA-CONICET) / Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
| | - Lelia E. Dicelio
- Inquimae (UBA-CONICET) / Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
| | - Enrique San Román
- Inquimae (UBA-CONICET) / Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
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Reddy DA, Choi J, Lee S, Ma R, Kim TK. Green synthesis of AgI nanoparticle-functionalized reduced graphene oxide aerogels with enhanced catalytic performance and facile recycling. RSC Adv 2015. [DOI: 10.1039/c5ra07267k] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
This work demonstrates the facile green synthesis of AgI-reduced graphene oxide aerogels with superior photocatalytic performance and remarkable durability.
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Affiliation(s)
- D. Amaranatha Reddy
- Department of Chemistry and Chemical Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Jiha Choi
- Department of Chemistry and Chemical Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Seunghee Lee
- Department of Chemistry and Chemical Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Rory Ma
- Department of Chemistry and Chemical Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
| | - Tae Kyu Kim
- Department of Chemistry and Chemical Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Republic of Korea
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Loddo V, Addamo M, Augugliaro V, Palmisano L, Schiavello M, Garrone E. Optical properties and quantum yield determination in photocatalytic suspensions. AIChE J 2006. [DOI: 10.1002/aic.10883] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kang MG, Park HS, Kim KJ. Effect of improved crystallinity of titanium silicalite-2 on photodecomposition of simple aromatic hydrocarbons. J Photochem Photobiol A Chem 2002. [DOI: 10.1016/s1010-6030(01)00652-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Schiavello M, Augugliaro V, Loddo V, López-Muñoz MJ, Palmisano L. Quantum yield of heterogeneous photocatalytic systems: Further application of an experimental method for determining the absorbed photon flow. RESEARCH ON CHEMICAL INTERMEDIATES 1999. [DOI: 10.1163/156856799x00310] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sturini M, Fasani E, Prandi C, Casaschi A, Albini A. Titanium dioxide-photocatalysed decomposition of some thiocarbamates in water. J Photochem Photobiol A Chem 1996. [DOI: 10.1016/s1010-6030(96)04408-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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ZrO2SiO2 mixed oxides: surface aspects, photophysical properties and photoreactivity for 4-nitrophenol oxidation in aqueous phase. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/1381-1169(96)00009-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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